HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London City

$419+ Cheap flights from Seattle (SEA) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
Apr 24 — May 11
Fri 4/24
Fri 5/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to London City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to London City

Cheapest flights from Seattle to London City
Explore the most affordable flight options available from Seattle to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:10 pm
SEA
-
LCY
1 stop19h 45m
Lufthansa
Thu 5/79:15 am
LCY
-
SEA
2 stops17h 15m
Lufthansa
Deal found 3/23$806
This KLM deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:45 pm
SEA
-
LCY
1 stop11h 45m
KLM
Tue 5/129:20 am
LCY
-
SEA
1 stop15h 10m
KLM
Deal found 3/21$832
This Virgin Atlantic deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:45 pm
SEA
-
LCY
1 stop19h 35m
Virgin Atlantic
Tue 5/59:20 am
LCY
-
SEA
1 stop15h 10m
Virgin Atlantic
Deal found 3/20$833
This SWISS deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:35 pm
SEA
-
LCY
1 stop16h 55m
SWISS
Wed 9/309:15 am
LCY
-
SEA
2 stops17h 17m
SWISS
Deal found 3/19$835
This Cheapflightsfares deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:10 pm
SEA
-
LCY
1 stop19h 45m
Lufthansa
Wed 10/149:15 am
LCY
-
SEA
2 stops15h 44m
Lufthansa
Deal found 3/22$836
This Cheapflightsfares deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:35 pm
SEA
-
LCY
1 stop16h 55m
SWISS
Thu 9/249:15 am
LCY
-
SEA
2 stops17h 17m
SWISS
Deal found 3/24$837
This Cheapflightsfares deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:10 pm
SEA
-
LCY
1 stop19h 45m
Lufthansa
Wed 4/299:15 am
LCY
-
SEA
2 stops15h 44m
Lufthansa
Deal found 3/24$838
This SWISS deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:52 pm
SEA
-
LCY
2 stops18h 33m
SWISS
Wed 10/149:15 am
LCY
-
SEA
2 stops17h 17m
SWISS
Deal found 3/22$839
This KAYAK deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/34:35 pm
SEA
-
LCY
1 stop18h 05m
SWISS
Tue 8/259:15 am
LCY
-
SEA
2 stops21h 27m
SWISS
Deal found 3/24$845
This Trip.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:35 pm
SEA
-
LCY
1 stop15h 05m
Virgin Atlantic
Mon 5/118:15 pm
LCY
-
SEA
1 stop23h 27m
Virgin Atlantic
Deal found 3/23$846
This Virgin Atlantic deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/213:35 pm
SEA
-
LCY
2 stops17h 05m
Virgin Atlantic
Thu 4/308:25 am
LCY
-
SEA
2 stops21h 25m
Virgin Atlantic
Deal found 3/23$847

Find flight deals from Seattle to London City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 25, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$806
(Cheapflightsfares)

One-way from

$419
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$689
Provider with most accurate pricing for Seattle/Tacoma Intl-London City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London City flights.
Search Deals
From Seattle/Tacoma Intl to London City
Search Deals
One-way flight from Seattle/Tacoma Intl to London City
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($126 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to London City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2026.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 4/19

1:45 pm-4:40 pm

1 stop18h 55m

London City

Wed 4/29

9:20 am-11:40 am

1 stop34h 20m

$833

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 4/19

1:45 pm-6:30 pm

1 stop20h 45m

London City

Tue 5/5

5:50 pm-11:42 am

1 stop25h 52m

$833

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 5/5

5:35 pm-4:40 pm

1 stop15h 05m

London City

Tue 5/12

10:00 am-8:41 pm

2 stops18h 41m

$843

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 4/21

5:35 pm-4:40 pm

1 stop15h 05m

London City

Thu 4/30

8:25 am-9:50 pm

2 stops21h 25m

$843

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 8/25

1:50 pm-5:20 pm

1 stop19h 30m

London City

Mon 10/5

9:20 am-10:17 pm

2 stops20h 57m

$893

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 4/13

1:45 pm-9:30 am

1 stop11h 45m

London City

Wed 4/22

10:00 am-4:30 pm

1 stop14h 30m

$933
Quickest round-trip

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 5/12

1:45 pm-9:30 am

1 stop11h 45m

London City

Thu 6/4

10:00 am-4:24 pm

1 stop14h 24m

$979

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 4/6

1:45 pm-9:30 am

1 stop11h 45m

London City

Tue 5/5

10:00 am-4:30 pm

1 stop14h 30m

$983

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 4/19

7:00 am-12:35 pm

2 stops21h 35m

London City

Tue 5/5

7:15 pm-7:00 pm

2 stops31h 45m

$1,019

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 5/7

1:45 pm-9:30 am

1 stop11h 45m

London City

Tue 5/12

10:00 am-4:30 pm

1 stop14h 30m

$1,033

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Seattle to London City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to London City in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-London City Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-London City Airport flight deals on Cheapflights vs. Ovago 90-95% of the time. Price accuracy is based on data collected from Seattle-London City Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-London City Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-London City Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London City. Reviews last updated March 25, 2026.
Get a feel of what it's like to fly with Scandinavian Airlines from Seattle to London City Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.3
Good
1,722 reviews

Boarding

7.6

Crew

8.0

Food

6.7

Entertainment

6.7

Overall

7.3

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jan 2026

SFO - CPH

It was very bad, my baggage didn’t arrive resulting in deep loss of money. My next flight to Zurich had to be cancelled, my hotel booking also had to be cancelled. I then had to book flight at Frankfurt airport to get my luggage. I won’t fly this airlines again unless there is no other choice. I highly won’t recommend it also
Scandinavian Airlines
7.3
Good
1,722 reviews
Scandinavian Airlines
7.3
Good
1,722 reviews

Boarding

7.6

Crew

8.0

Food

6.7

Entertainment

6.7

Overall

7.3

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jan 2026

SFO - CPH

It was very bad, my baggage didn’t arrive resulting in deep loss of money. My next flight to Zurich had to be cancelled, my hotel booking also had to be cancelled. I then had to book flight at Frankfurt airport to get my luggage. I won’t fly this airlines again unless there is no other choice. I highly won’t recommend it also

Related info for your journey

Find useful and relevant information for your journey from Seattle to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to London City?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to London City from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to London City should be relatively easy as there are 0 daily outbound flights to London City from 1 airline.

  • How long is the flight from Seattle to London City Airport?

    A quick flight from Seattle to London City Airport can take about 18h 55m. Delta provides one of the quickest options available for as low as $833. Seattle and London City Airport are separated by a distance of 4794 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to London City Airport round-trip?

    According to our current data, Scandinavian Airlines ($962), offers the cheapest pricing from Seattle to London City Airport.

  • Can I find deals for flights from Seattle to London City that include hotel bookings?

    Yes. In addition to deals on Seattle to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to London City.

  • Can I find deals for business class flights from Seattle to London City?

    Yes. Cheapflights offers flight deals from Seattle to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Ilford
Hounslow
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Sutton
Slough
Stansted

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Seattle to London City

Discover the top airline that operate flights from Seattle to London City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$962Average$1,000FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.